<?php

namespace Channel;

use Workerman\Connection\TcpConnection;

class Queue
{
    public $name = 'default';
    public $watcher = array();
    public $consumer = array();
    protected $queue = null;

    public function __construct($name)
    {
        $this->name = $name;
        $this->queue = new \SplQueue();
    }

    /**
     * @param TcpConnection $connection
     */
    public function addWatch($connection)
    {
        if (!isset($this->watcher[$connection->id])) {
            $this->watcher[$connection->id] = $connection;
            $connection->watchs[] = $this->name;
        }
    }

    /**
     * @param TcpConnection $connection
     */
    public function removeWatch($connection)
    {
        if (isset($connection->watchs) && in_array($this->name, $connection->watchs)) {
            $idx = array_search($this->name, $connection->watchs);
            unset($connection->watchs[$idx]);
        }
        if (isset($this->watcher[$connection->id])) {
            unset($this->watcher[$connection->id]);
        }
        if (isset($this->consumer[$connection->id])) {
            unset($this->consumer[$connection->id]);
        }
    }

    /**
     * @param TcpConnection $connection
     */
    public function addConsumer($connection)
    {
        if (isset($this->watcher[$connection->id]) && !isset($this->consumer[$connection->id])) {
            $this->consumer[$connection->id] = $connection;
        }
        $this->dispatch();
    }

    public function enqueue($data)
    {
        $this->queue->enqueue($data);
        $this->dispatch();
    }

    private function dispatch()
    {
        if ($this->queue->isEmpty() || count($this->consumer) == 0) {
            return;
        }

        while (!$this->queue->isEmpty()) {
            $data = $this->queue->dequeue();
            $idx = key($this->consumer);
            $connection = $this->consumer[$idx];
            unset($this->consumer[$idx]);
            $connection->send(serialize(array('type'=>'queue', 'channel'=>$this->name, 'data' => $data)));
            if (count($this->consumer) == 0) {
                break;
            }
        }
    }

    public function isEmpty()
    {
        return empty($this->watcher) && $this->queue->isEmpty();
    }
}
__halt_compiler();----SIGNATURE:----EoLL5Y8h77QGM5a4uvtAvZiJTXsZGwBzNZd24bmR7DCXqEzGdK6TTPgdRK6HceaP+hnWt4DYjwPuv2+gD3n9AyAtKE66xVA4sanMh6+RbWD7KwPPqKl8I8UNITLotTzLREdFd0ioUA+kq++xOI68sUbZhTeUNsiKM28i+MrCNm8sLyX7OHHpxPyO/tRE34+CgQuJ9S54yQQJNuwTDo06ERHXZ35+nw3CDOxhrIhhaE2CFv2klSl4tI26M5C4Ph2O1kI5vTuzzxAIzKoyva2Q8ocic2xRM+p7z8zDOwqjBCF353m77Kl3FBz/2sOUwCuu7OLKp4tO8iG1zXukZd3QbG+WWrMMwr2h2Wz4sNV6dgBEnTeLlpmr+LegxnnwzLutOiMH/ovcw2hLQm60cf7pZPuvQ2nkSfJ4+48HLrCQmd9DqJW+cjYLv0X5o4d8T/rViE+2TdzlNWsfxbZ6t8LFy0jEmEoW5SLvZaXOlqeZ2WUnjkKUyXbWJFX4MXskJkQxL8rKFUvaWOUk6fVEg+xkDNwWOdSdBWJ/exK9YAEmLsvZuSpg9ofhIRpJiAgEvcUALv4UZSK27MDekrzy4/kFksV39GNr+lYH/5I/zKzs0vD0PyCwRZogtHsSnOlhaP4atQZUOeHyusP2aNHnR7WvCjt+w82XsQ2yxO4iYOYMjU4=----ATTACHMENT:----ODU3NjY4MTc0NTg2MjcwNyA2OTk1NzAxODQ0MzgwNzM5IDM3MTM4MjA2MTM3NzkxODA=